If you’ve ever wanted to master a dish that’s rich, comforting, and packed with layers of flavor, you’re going to love this Caramelized Onion Mushroom Risotto Recipe. It’s the kind of meal that feels luxurious without fuss, blending the sweetness of perfectly caramelized onions with earthy mushrooms and the creamy, dreamy texture of classic Arborio rice. Every bite is like a warm hug from the inside out, and I’m excited to share how you can bring this deliciousness into your kitchen with ease and joy.

Ingredients You’ll Need
The magic of this Caramelized Onion Mushroom Risotto Recipe comes from its simple yet thoughtfully chosen ingredients. Each item adds depth, from the rich umami of mushrooms to the delicate tang of white wine, ensuring every spoonful is an experience worth savoring.
- 2 large yellow onions, thinly sliced: Caramelizing these slowly brings out their natural sweetness and forms the backbone of flavor in this risotto.
- 9 ounces cremini or button mushrooms, sliced: Offers a savory, earthy element with a satisfying texture contrast.
- 3 cloves garlic, minced: Adds a subtle aromatic punch that enhances every other ingredient.
- 2 tablespoons fresh parsley, chopped: Brings a fresh, bright finish to balance the richness.
- 1.5 cups Arborio rice: The star starch that yields creamy, tender grains while holding just the right bite.
- 0.5 cup grated Parmesan cheese: Infuses a nutty, salty flavor, elevating the risotto’s creaminess.
- 3 tablespoons unsalted butter: Used for richness and silkiness in every mouthful.
- 0.25 cup heavy cream: Adds an extra layer of creaminess without overpowering the delicate flavors.
- 4 cups low-sodium vegetable broth, kept warm: Gradually absorbed to cook the rice and develop that signature risotto texture.
- 0.5 cup dry white wine: Gives a wonderful tang and depth that brightens the dish.
- 2 tablespoons olive oil: For sautéing onions and mushrooms with ease and subtle fruitiness.
- 0.5 teaspoon salt, plus more to taste: Enhances all flavors without dominating.
- 0.25 teaspoon black pepper, plus more to taste: Adds just the right amount of gentle heat.
How to Make Caramelized Onion Mushroom Risotto Recipe
Step 1: Caramelize the Onions
Start by heating olive oil and butter in a heavy-bottomed skillet over medium-low heat. Add the thinly sliced onions and a pinch of salt, then cook slowly for about 20 to 25 minutes, stirring frequently. This slow cooking releases the onions’ natural sugars, turning them golden brown and soft, creating a sweet, rich flavor foundation for the risotto. Patience here is key – it’s worth every minute!
Step 2: Sauté the Mushrooms and Garlic
Using the same pan, add the remaining olive oil and toss in your sliced mushrooms. Cook them over medium heat until they release their juices and start to turn golden, about 7 minutes. Then add the minced garlic and stir for another minute until fragrant. Combining these two ingredients now builds the earthy, savory notes that perfectly complement the sweet onions.
Step 3: Toast the Rice
Next, add your Arborio rice directly to the pan with the mushrooms and garlic. Stir it constantly for about 2 minutes to lightly toast the rice. This step is essential for developing that slightly nutty undertone and helps each grain maintain its texture when the liquids start to work their magic.
Step 4: Deglaze with Wine
Pour in the dry white wine and stir as it simmers away. This deglazing step lifts all those flavorful browned bits from the bottom of the pan and infuses the rice with a lovely brightness and acidity, balancing the richness that’s to come.
Step 5: Build the Risotto
This is where the ritual begins – ladle warm vegetable broth into the rice mixture one scoop at a time. Stir gently and wait for each addition to be fully absorbed before adding the next. This slow process, lasting around 18 to 20 minutes, is what transforms the rice into a luxuriously creamy yet al dente masterpiece. Don’t rush it; the stirring helps release the rice’s natural starches to create that signature silky texture.
Step 6: Finish and Season
Once the rice is tender but still has a bit of bite, stir in the caramelized onions you set aside earlier, the remaining butter, Parmesan cheese, and heavy cream. These ingredients add richness and depth, rounding out the flavors perfectly. Taste and adjust salt and pepper to your liking before turning off the heat.
Step 7: Rest and Serve
Let your risotto rest for a couple of minutes – this allows the flavors to meld beautifully. Then fold in fresh chopped parsley for a burst of color and freshness. Serve immediately, garnished with extra Parmesan and parsley, and prepare for some very happy taste buds.
How to Serve Caramelized Onion Mushroom Risotto Recipe

Garnishes
Garnishing this risotto with freshly grated Parmesan and a sprinkle of chopped parsley not only enhances its visual appeal but also introduces subtle flavor contrasts. A light drizzle of truffle oil or a handful of toasted pine nuts can add an extra layer of indulgence if you’re feeling adventurous.
Side Dishes
This Caramelized Onion Mushroom Risotto Recipe pairs beautifully with a crisp green salad dressed in lemon vinaigrette or some roasted seasonal vegetables. For a heartier meal, grilled chicken or seared scallops can complement the creamy texture and earthy flavors wonderfully.
Creative Ways to Present
For an elegant dinner, serve the risotto in shallow bowls with a delicate Parmesan crisp on top. Alternatively, for a more casual family-style meal, present it in a large rustic dish straight from the stovetop, encouraging everyone to serve themselves and enjoy the communal vibe.
Make Ahead and Storage
Storing Leftovers
If you find yourself with leftovers, place them in an airtight container and refrigerate for up to 3 days. The risotto thickens as it cools, so it’s normal for it to have a denser texture when cold.
Freezing
While risotto is best enjoyed fresh, you can freeze leftovers for up to one month. Make sure it’s in a freezer-safe container, and allow it to cool completely before sealing to preserve its flavors and texture as best as possible.
Reheating
Reheat gently on the stove with a splash of broth or water to loosen the texture. Stir continuously over low heat until heated through and creamy again. Avoid microwaving in one go as it can create uneven heating and dryness.
FAQs
Can I use other types of mushrooms in this risotto?
Absolutely! Shiitake, oyster, or even porcini mushrooms can bring unique flavors and textures. Just remember that dried mushrooms should be rehydrated and their soaking liquid used carefully to adjust the broth.
Is Arborio rice necessary for this recipe?
Arborio rice is ideal because of its high starch content which creates the creamy texture risotto is famous for. While you can try other short-grain rices like Carnaroli, avoid long-grain varieties which won’t yield the same creaminess.
Can I make this recipe vegan?
Yes! Substitute the butter with olive oil, use vegan Parmesan alternatives or nutritional yeast, and swap heavy cream for coconut cream or a plant-based cream substitute to maintain creaminess while keeping it plant-based.
Why do I have to keep adding broth one ladle at a time?
Adding broth gradually allows the rice to slowly release starch and absorb liquid evenly, which creates risotto’s signature creamy consistency. Pouring all at once would result in uneven cooking and a less luscious texture.
Can I prepare the caramelized onions and mushrooms ahead of time?
Definitely! Caramelized onions and sautéed mushrooms can be made a day ahead and stored in the fridge. Reheat gently before incorporating them into the risotto during the final stages.
Final Thoughts
This Caramelized Onion Mushroom Risotto Recipe is one of those timeless dishes that turns everyday ingredients into something truly special. Whether you’re treating yourself or impressing guests, it promises comfort, sophistication, and pure deliciousness in every spoonful. Give it a try – your taste buds will thank you!
Print
Caramelized Onion Mushroom Risotto Recipe
- Prep Time: 10 minutes
- Cook Time: 45 minutes
- Total Time: 55 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Stovetop
- Cuisine: Italian
- Diet: Vegetarian
Description
This creamy Caramelized Onion Mushroom Risotto combines deeply caramelized onions and sautéed mushrooms with rich Arborio rice, Parmesan cheese, and a hint of white wine. Slow-cooked on the stovetop to a luscious, al dente finish, this dish is a comforting and elegant vegetarian meal perfect for any occasion.
Ingredients
Vegetables
- 2 large yellow onions, thinly sliced
- 9 ounces cremini or button mushrooms, sliced
- 3 cloves garlic, minced
- 2 tablespoons fresh parsley, chopped
Grains and Dairy
- 1.5 cups Arborio rice
- 0.5 cup grated Parmesan cheese
- 3 tablespoons unsalted butter
- 0.25 cup heavy cream
Liquids and Oils
- 4 cups low-sodium vegetable broth, kept warm
- 0.5 cup dry white wine
- 2 tablespoons olive oil
Seasonings
- 0.5 teaspoon salt, plus more to taste
- 0.25 teaspoon black pepper, plus more to taste
Instructions
- Caramelize the onions: In a large heavy-bottomed skillet or Dutch oven, heat 1 tablespoon olive oil and 1 tablespoon butter over medium-low heat. Add the thinly sliced onions and a pinch of salt. Cook, stirring often, for 20 to 25 minutes until the onions are deeply golden and caramelized. Transfer the onions to a bowl and set aside.
- Sauté the mushrooms and garlic: Using the same pan, add the remaining tablespoon of olive oil. Sauté the sliced mushrooms over medium heat until they are browned and their moisture has evaporated, about 7 minutes. Add the minced garlic and cook for an additional 1 minute until fragrant.
- Toast the rice: Stir in the Arborio rice and continue to cook for 2 minutes, stirring constantly to toast the rice and prevent it from sticking to the pan.
- Deglaze with wine: Pour in the dry white wine and cook while stirring until it is mostly absorbed by the rice.
- Build the risotto: Add the warm vegetable broth one ladle at a time, stirring gently and allowing each addition to be absorbed before adding the next. Continue this process for 18 to 20 minutes until the rice becomes creamy and al dente. Reserve any remaining broth.
- Finish and season: Stir in the caramelized onions, the remaining butter, grated Parmesan cheese, and heavy cream. Season with additional salt and black pepper to taste. Remove the pan from the heat.
- Rest and serve: Let the risotto rest for 2 minutes. Before serving, stir in the chopped fresh parsley. Serve immediately, garnished with extra Parmesan cheese and fresh parsley for added flavor and presentation.
Notes
- Keep the vegetable broth warm to ensure even cooking and proper absorption by the rice.
- Use a heavy-bottomed skillet or Dutch oven for even heat distribution and to prevent burning.
- Stir frequently but gently to release the starches from the rice for a creamy texture.
- You can substitute dry white wine with additional broth or a splash of lemon juice if preferred.
- For a vegan version, omit Parmesan and heavy cream or replace with nutritional yeast and vegan cream alternatives.

